Armored hose



R. J. STOKES ARMORED HOSE Nov. 10, 1931.

Filed Nov. 7, 1929 I... IIILIIIIIIIIIII II.

IIIIIII'III III Patented Nov. .10, l

UNITEDl STATES 1PA-TENT. oFFlcE RoRER'r J. sToEEs, oF rRiNoEfroN rowNsHIr, MERCER. COUNTY, NEW JERSEY, AssIGNoR 'ro THERMOID RUBBER ooMrANY, 0E rrREN'roN, NEW JERSEY, A CORPORA- 'rIoN or NEWv JERSEY ARMORED HOSE applicati@ mea November 7, 1929. serial No. 405,415.

ment of a hose made in accordance with my invention, the View being such as to illustrate the successive steps of manufacture; and

Fig. 2 is a. longitudinal sectional view through the section of hose shown in Fig. 1.

With reference to the drawings: My hose comprises the usual rubber or rubberized tubular base l, this consisting, in the present instance, of a rubberized fabric tube 2, having an inner facing or sheath 3 'of rubr ber and an outer rubber sheath 4.

In accordance with my invention, I wind directly upon the surface ofthe outer sheath 4, in the form of a continuous open helix, a fiat wire 5 of substantial rectangular crosssection. The convolutions of this wire are spaced apart to an extent corresponding substantially with. the width of the wire itself.

I now wind u-pon the sheath 4 of the hose, within the spaces between the convolutions of the wire 5, a strip 6 of uncured rubber, this strip being.' cross-sectionally, substantially ofthe same dimensions as the wire 5 and thereby neatlyfilling the space between the adjacent convolutions of the latter.

I then subject the strip 6 to a vulcanizing operation which renders this'strip strong and resilient and thoroughly bonds this strip with the outer sheath 4. f

I now wind around the layer formed by the i wir/e5 and the rubber strip 6, a second helix `of Wire 7, this wire being wound in a direction opposite tothe helix of the wire 5. The dimensions of the wire 7 and the spaoingof the f movement.

successive convolutions thereof, one substantially the same as those of the wire 5. Within the spaces between the convolutions of the wire 7, Il now lay a second helical strip 8 of rubber,

convolutions. A second vulcanizing operation follows, which cures this rubber and creates a secure bond between this stripl and therubber of thestrip G. Subsequently an outer-l sheatli of rubber may be applied if desired' as indicated at 9 in Fig. 2. The aforedescribed procedure maybe variedby applying the rubber strips in the open helix formation prior tothe application of the interspersed wires.

An-armored hose made in accordance with the above procedure has been found to pos- Sess great strength and durabillityand also a this rubber being in .an uncured state i and neatly filllng the spaces between .the wire relatively high iiexibility, it being apparent f. f

that during leXure, a compression of the rubber intermediate` the convolutions of the wires permits entire freedom of -relative At the same time no unfilled spaces are left between the wires-for admission of air or moisture or of the substances having a deteriorating effect either upon the rubber or the wire. Y

I claim: 1. A hose comprising a flexible rubber tube, a wire wound about said tube in spaced convolutions, rubber lilling the spaces between said convolutions and bondedto the rubber tube, a second helix of Wire wound in an opposite direction about the first, whereby the latter constitutes a seat for the former, and a rubber iilling between the convolutions of the buter wire bonded to the rubber underlying. l

2. An armored rubber hose comprising superimposed and contacting opposite helices of metallic wire, helices .being spaced, and .vulcanized rubber filling the spaces between said convolutions. 3. A. hose comprising a iienible rubber tube,

a metallic wire of rectangular cross section, wound bout the tube in spaced convolutionss a. at side of said wire seating upon the outer surface of the tube rubberelling the spaces l between said convo utions and bonded to the said tube, a second helix of wire also of rectangular cross section wound in anv opposite direction about the rst, said second wire seating upon the rst and having metal-t0- metal Contact therewith, ancla, rubber filling between the convolutions of the outer wire bonded to the rubber underlying.

ROBERT J. STOKES. 

